using LEDs instead of a ball
Published in issue 328, January 2004
Everybody gambles sometimes, perhaps in a lottery or even in a casino. After all, who doesn’t dream of becoming rich without having to work hard? Although you can’t win much with the LED roulette wheel described here, it does provide an excellent opportunity to practice the game of roulette at home in an honest manner. That’s because you can’t cheat with this version - the microcontroller that controls the LEDs doesn’t take bribes!The game of roulette has been known for centuries, and it is played all over the world. In order to make it easier to play this game at home, here we a present an electronic roulette game. This electronic version only replaces the turntable, which is the dished wheel used with a small ball to select a random number for each round of the game. You will have to make the playing field and the counters yourself.
The PCB has a short-circuit between the anode of D18 and the +5 V rail. To lift the short-circuit, two tracks have to be cut and a wire link fitted.
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Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.